Card



Oct. 15, 1968 A. s. VINOGRADOV ETAL CARD 3 Sheets-Sheet 1 Filed Nov. 9,1966 Oct. 15, 1968 A. s. VINOGRADOV ETAL 3,405,427

CARD

Filed Nov. 9, 1966 3 Sheets-Sheet 2 wil Oct. 15, 1968 A. s. VINOGRADOVETAL 3,405,427

CARD

Filed Nov. 9, 1966 5 Sheets-Sheet 5 United States Patent 3,405, 27 CARDAlexandr Sergeevich Vinogradov, Ulitsa Krasnykh Zor 400 kvart. dom, kv.311; Jury Mikhailovich Kapustin, Ulitsa Proletarskaya 2, kv. 91; IlyaNikolaevich Maxjutenko, Ulitsa 2 Lagernaya 50, kv. 35; VladimirNikolaevich Kiselnikov, Ulitsa Malaya Khutorovskaya 5, kv. 20; IgorSergeevich Borisov, Ulitsa 2 Lagernaya 42, kv. 3; and Ivan MikhailovichMazalov, Sosnevo, 7 proezd 57, kv. 8, all of Ivanovo, U.S.S.R.

Filed Nov. 9, 1966, Ser. No. 593,054 4 Claims. (Cl. 19-107) ABSTRACT OFTHE DISCLOSURE A card in which waste and flat strips are fed torespective intake members constituted by pairs of rollers rotating inopposite directions which feed the strips and Waste to respectiveadjacent ducts connected to a shutoli mechanism which periodically opensthe ducts simultaneously for the separate elimination of the flat stripsand Waste without their intermixing.

The present invention relates to apparatus for carding and cleaningcotton fibers, and more particularly concerns cotton cards findingapplication in the textile industry.

Known in the prior art is a card in which flat strips and wastes arepneumatically eliminated from the intake members of the flat stripperand conveyor along separate air ducts (see Patent 84,310, class 76b10and complementary Patent 124,850, class 76bl0 issued in the U.S.S.R.).

The drawbacks presented by the aforementioned card are high airconsumption for the continuous elimination of card strips and waste fromthe machine into a common pneumatic system.

Moreover, a damper closing the air duct of the pneumatic system does notensure either a good sealing of the air ducts or the simultaneouselimination of waste and flat strippings from one automatic controlstation.

This card also presents the drawback of having a flat stripper withintake members which do not ensure periodic pneumatic elimination ofcard strips.

An object of the present invention is to provide a card in whichsimultaneous automatic elimination of flat strips and waste is carriedout according to a preset program with a minimum air consumption.

Another object of the present invention is to provide intake membersarranged close to the flat stripper and card conveyor which promoteperiodic pneumatic elimination of flat strips.

With this and other objects in view, the card is constructed so that theelimination of fiat strips and waste from the intake members of the flatstripper and conveyor is effected pneumatically along separate airducts. According to the invention, a shut-off arrangement is providedthrough which separate air ducts are led, ensuring periodic andsimultaneous elimination of flat strips and waste without their beingmixed together; the intake members are in the corm of a pair of rollersrotating in opposite directions and disposed adjacent to air ductsprovided at this point with a slot of the same length as the rollers.

It is expedient to use a shut-01f arrangement in the form of anelectromagnetic valve with a spring-loaded disk having two throughholes, said disk being connected with the electromagnet armature andenclosed in a sealed housing with through holes for attaching the endsof air ducts.

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In this way in the proposed card, a periodic and simultaneouselimination of waste and fiat strips from intake members is ensuredaccording to a preset program with their transfer into air ducts of thepneumatic system. This allows a reduction in air and currentconsu-mption.

A better understanding of the objects and advantages of the presentinvention will be obtained from the following description of anembodiment of the proposed card and the accompanying drawings, in which:

FIG. 1 is an elevation view of a card provided with an arrangement forperiodic pneumatic elimination of waste and flat strips according to theinvention;

FIG. 2 is a perspective view of the shut-off arrangement and intakemembers in the air ducts, according to the invention; and

FIG. 3 is a perspective view of the shut-01f arrangement, according tothe invention.

In FIG. 1 there is shown a card comprising a feeding unit 1, a receivingor taker-in unit 2, a main cylinder 3, belts 4, a doffer 5, a dofiercomb 6, delivery rollers 7 and a coiler 8 for coiling the sliver in thecontainer 9. Additionally there are provided intake members 10 and 11,the latter being constituted as two pairs of rollers rotating inopposite directions.

One pair of rollers 12 is provided at the Waste elimination conveyor 13,while the second pair of rollers 14 is arranged at the fiat stripper.

The rollers in pairs 12 and 14 are driven in opposite rotation by thedrive (not shown in the drawing) of the card, through sprockets 16 (FIG.2), chain transmission 17, and gear 18.

The rollers 12 are located adjacent the air ducts 19 and the rollers 14adjacent air ducts 20. At the point of their contact with the rollers 12and 14, the air ducts 19 and 20 are provided with slots 21 and 22 of thesame length as the rollers.

The air ducts 19 and 20 are connected to a central pneumatic system bymeans of intermediate air ducts 23, 24, 25 and 26.

For periodic elimination of waste and flat strips along the air ducts19, 20, 23, 24, 2S and 26, the latter are equipped with a shut-01fdevice in the shape of an electromagnetic valve 27.

The electromagnetic valve 27 is made as a rotatable disk 28 (FIG. 3)fixed on a shaft 29 connected with a lever 30. The disk 28 is enclosedbetween the walls 31 and 32 which when secured together form ahermetically sealed housing. Two coaxial holes are provided in the walls31 and 32 and two holes in the disk 28, the latter being arrangedbetween the walls, so that its holes in non-Working position do notcoincide with the holes in Walls 31 and 32.

The ends of the intermediate air ducts 23 and 25 fit into the holes ofwall 31 and the air ducts 24 and 26 fit into the holes of the wall 32.

For turning the disk 28, the lever 30 is connected with the armature ofan electromagnet 33 (FIG. 2) by means of rod 34.

For returning the disk 28 (FIG. 3) into initial position the lever 30 isconnected with a spring 35.

The shut-off arrangement ensures the simultaneous periodic opening andclosing of air ducts 19, 20, 23, 24, 25, 26 and the connection of theintake devices 10 and 11 with the pneumatic system serving for theperiodic .automxatic elimination of waste and flat strips from theintake devices 10 and 11 of the card according to a preset program.

1 The card with the automatic arrangement for periodic pneumaticelimination of waste and flat strips according to a preset programoperates in the following way:

The flat strips removed by the mechanism 15 from the belts 4 areforwarded, in any convenient manner known in the art, to the intakedevice 10 with the rollers 14 rotating in opposite directions.

The pair of rollers 14 grasps the flat strips and uniformly feeds themthroughout the full width of the rollers through the slot 22 into theair duct 20. At the same time, the second pair of rollers 12 of theintake device 11 grasps the waste removed by the conveyor 13 from underthe card and feeds the waste through slot 21 into the air duct 19.

The external programming automatic station (not shown in the drawing) atpreset time intervals energizes the electromagnet 33 (FIG. 2) whichturns the disk 28 by means of lever 30 and rod 34 in order to bring incoincidence the through holes of the disk with the holes in walls 31 and32.

In the air ducts of the central pneumatic system, a vacuum is created,and as a result fiat strips are eliminated via the air ducts 19, 23 and24 and the waste via the air ducts 20, 25 and 26. According to a presetprogram the automatic station after a certain delay deenergizes theelectromagnet 33, and the rotatable disk 28 is returned by the spring 35into initial position thus closing the holes in the air ducts.

The disk 28 enclosed in a hermetically sealed housing excludes anypossibility of undesirable air suction into the pneumatic system whichallows periodic simultaneous elimination of waste and flat strips withminimum air consumption, while the intake devices 10 and 11 ensure flatstrips and waste accumulation for subsequent periodic elimination fromthe card.

What is claimed is:

1. In a card, a device for the elimination of flat strips and wastecomprising first and second intake members adapted for respectivelyreceiving flat strips and waste, said members each including a pair ofrollers rotating in opposite directions and air ducts for the pneumaticelimination of the fiat strips and waste delivered to the intakemembers, said air ducts being positioned adjacent said rollers andhaving respective slots of the same length as the rollers and extendingcoextensive therewith, and shutofif means coupled to said ducts forperiodically and simultaneously opening the ducts for the separateelimination of flat strips and waste without their intermixing.

2. A device as claimed in claim 1 wherein said shutoff means comprises ahermetically sealed housing, said ducts being connected to said housingand opening thereinto, a pair of further ducts connected to the housingand opening thereinto in alignment with the first said pair of ducts, arotatable member in said housing having a pair of openings therein, andmeans for moving said rotatable member between first and secondpositions, said member in one position having the openings therein inregistry with the aligned ducts, and in the other position closing theducts where they open into the housing.

3. A device as claimed in claim 2 wherein said housing is constituted bya pair of walls which are clamped together, said rotatable member beinga disc which is interposed between the walls.

4. A device as claimed in claim 3 wherein said means for moving therotatable member is an electromagnet coupled to the disc for rotatingthe same, and a spring which urges the rotatable member to the positionin which the ducts are closed.

References Cited FOREIGN PATENTS 21,672 12/ 1898 Great Britain. 124,8504/ 1959 U.S.S.R. 440,149 2/ 1927 Germany. 955,801 7/1949 France. 548,77710/ 1922 France.

MERVIN STEIN, Primary Examiner.

I. C. WADDEY, J R., Assistant Examiner.

